Hi Barry and Friends
I saw your post in response yesterday , I double-checked and actually
the profiles positioned on the rail did not maintain the angular relationship
(usually, using Catia, I have this default option
for the Rib ... tool in Ambient Part Design)
but Moi is another thing ...,
so, I changed the method, I increased the profiles positioned
along the rail, positioning them consistently in the four axes ...
I think the result is satisfying ...
I tried to do a little animation too
file at this link:
http://www.mediafire.com/file/rp6f9d9awfd5c3r/Globoid_Worm_Gear.rar/file
Have a nice day to all
alberto